CVE record · CVE-2025-5987

Libssh: invalid return code for chacha20 poly1305 with openssl backend

CVSS 8.1 HighEPSS 0.017 · 77th percentile

Published by the CVE Program (CNA: redhat) at 7 Jul 2025, 14:24 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Not given	Not given Package name: libssh https://www.libssh.org/	affected 0.10.0 to before 0.11.2 semver Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 10 Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.11.1-5.el10_1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.11.1-4.el10_0.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.10.4-17.el9_7 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.10.4-17.el9_7 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.10.4-9.el9_2.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.10.4-13.el9_4.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support Package name: libssh https://access.redhat.com/downloads/content/package-browser/	unaffected 0:0.10.4-15.el9_6.1 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.13 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 413.92.202602240113-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.14 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 414.92.202601191325-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.15 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 415.92.202601271320-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.16 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 416.94.202601160124-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.17 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 417.94.202601120213-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.18 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 418.94.202601202224-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.19 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 4.19.9.6.202601260820-0 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift Container Platform 4.20 Package name: openshift/ose-rhel-coreos-9 https://access.redhat.com/downloads/content/package-browser/	unaffected 4.20.9.6.202601211057-0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: libssh2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown
Red Hat	Red Hat Enterprise Linux 7 Package name: libssh2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unknown
Red Hat	Red Hat Enterprise Linux 8 Package name: libssh https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat OpenShift Container Platform 4 Package name: openshift/ose-rhel-coreos-8 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected

Identifiers: CVE-2025-5987
CNA: redhat
Weakness (CWE): CWE-393
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 10.0 Extended Update Support
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Red Hat Enterprise Linux 9.4 Extended Update Support
Red Hat Enterprise Linux 9.6 Extended Update Support
Red Hat OpenShift Container Platform 4.13
Red Hat OpenShift Container Platform 4.14
CWE-393
Published: 7 Jul 2025
Updated: 5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.1	High	3.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.017, the 77th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

7 Jul 2025, 14:24 UTC Confirmed by the CVE List
7 Jul 2025, 15:15 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2025:23483 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:23484 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0427 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0428 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0430 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0431 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0702 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0978 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0980 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0985 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:0996 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:1539 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:1541 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2026:3415 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2025-5987 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2376219 issue-trackingredhat
www.libssh.org/security/advisories/CVE-2025-5987.txt

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.